Call of nature 

A polite way of proposing your needs of using the wash room!

Girl: Hey I have to answer the call of nature!
Girl 1: Can I come
Girl 2: Let's go
The rest of the girls: Ya! LET'S GO TOGETHER!!!

Call of nature by StickyFingers27 July 15, 2021

answer the call of nature 

an evacuation of waste matter from the body.

Often described as:
Taking a piss or taking a shit

Bob: Excuse me I need to answer the call of nature.
*Bob gets up and walks away*
Jim: (to George) Where is Bob going?
George: To take a piss he said.
Jim: You sure he didn't mean take a shit
George: I could give a fuck less Jim.

answer the call of nature by WizeKracker April 14, 2014

Conference call of nature 

When someone responds to the call of nature during a work-related conference call. People must take great care to mute their phone during said act or risk professional embarrassment.

You were extremely quiet during the conference call?
Yeah dude, Conference Call of Nature

Conference call of nature by crc5654 September 24, 2011